Haloes Around San Antonio Streetlights? Early Signs of Cataracts vs. Night Driving Glare

Have you noticed glowing rings around streetlights or increased glare from headlights while driving through San Antonio at night? These visual disturbances can make nighttime driving uncomfortable and potentially dangerous. While occasional glare is common, persistent haloes around lights may indicate an underlying vision problem, including early cataracts.
 

At Texas State Optical Stone Oak, we help patients understand changes in their vision and identify potential eye health concerns through comprehensive eye exams.
 

Why Do You See Haloes Around Lights at Night?

Haloes appear as bright circles or rings surrounding light sources, particularly streetlights, headlights, and traffic signals. They occur when light scatters rather than focusing properly within the eye.
 

Several conditions can contribute to nighttime haloes, including dry eyes, uncorrected astigmatism, outdated eyeglass prescriptions, and cataracts.
 

For San Antonio drivers, these symptoms may become particularly noticeable on busy roads after sunset, when bright headlights contrast with darker surroundings.
 

Early Signs of Cataracts

Cataracts develop when the eye's natural lens becomes cloudy, gradually affecting how light enters and focuses inside the eye. Although cataracts typically develop with age, other factors such as diabetes, eye injuries, and prolonged UV exposure can increase your risk.
 

Common early signs of cataracts include:

• Haloes around lights: Glowing rings surrounding headlights and streetlights.

• Increased glare sensitivity: Bright lights become uncomfortable, especially while driving at night.

• Cloudy or blurry vision: Objects may appear hazy even with prescription glasses.

• Difficulty seeing in low light: Nighttime driving and dimly lit environments become more challenging.

• Frequent prescription changes: Glasses that previously worked well may no longer provide clear vision.
   

Cataract symptoms often develop gradually, making them easy to overlook. Regular eye exams allow us to monitor changes in your vision and assess the health of your eye's natural lens.
 

Cataracts vs. Normal Night Driving Glare

Not every instance of nighttime glare indicates cataracts. Even healthy eyes can experience temporary glare from intense headlights, particularly when transitioning between bright and dark environments.
 

However, cataract-related glare tends to become more persistent and may progressively interfere with everyday activities.
 

Dry eye syndrome can also cause fluctuating blurry vision and light sensitivity. San Antonio's environmental conditions, including seasonal allergens and dry weather, may contribute to tear film instability that makes nighttime glare more noticeable.
 

An outdated prescription or astigmatism can create similar symptoms by preventing light from focusing clearly on the retina.
 

The most reliable way to distinguish these conditions is through a comprehensive eye examination.
 

How We Evaluate Night Driving Vision Problems

At Texas State Optical Stone Oak, we evaluate visual clarity and overall eye health to identify potential causes of haloes and nighttime glare.
 

During your examination, we may assess your prescription, examine the cornea and natural lens, evaluate your tear film, and look for signs of cataracts or other eye conditions.
 

If cataracts are affecting your vision, we can discuss appropriate next steps, monitor their progression, and coordinate specialized surgical care when necessary.
 

When Should You Schedule an Eye Exam?

If nighttime glare becomes more frequent, affects your confidence behind the wheel, or makes streetlights appear unusually bright, schedule an eye examination rather than assuming these changes are normal aging.
 

Sudden vision changes, severe eye pain, or new haloes accompanied by redness, headache, or nausea require immediate medical attention.
 

Are haloes and nighttime glare affecting your driving? Schedule a comprehensive eye exam with Texas State Optical Stone Oak in San Antonio, TX. Contact our team at (210) 361-0065 to evaluate your vision and take the next step toward clearer, more comfortable nighttime driving.